Answer:
B) 
Step-by-step explanation:
The formula for the area of a circle is : 
The radius of a circle is the length from one side to the centre.
To work this out you would have to multiply pi by the radius of 7 squared, this gives you 153.94, however if using pi as in 3.14, then the answer is 153.86.
1) Multiply pi by 7 squared.
Answer:I’m only doing 3 and id k if I’m right either so lol but A is a reflection I think and I don’t think B is congruent which mean some of the size and not like right like they don’t match or something like that and to be nice on number 5 trace the tree up the blue zigzag yea trace it rly hard fold it then rub on the back of the paper the shape should end up on the other side that’s how I cheated try doing that with number 4 too
Step-by-step explanation:I’m sry if that doesn’t make sense I tryed
Answer:
Step-by-step explanation:
x²+y²-2x-10y+1=0
compare with x²+y²+2gx+2fy+c=0
center is (-g,-f)
radius=√(g²+f²-c)
2g=-2
g=-1
2f=-10
f=-5
radius=(1,5)
c=1
let eq. of circle be x²+y²-2x-10y+c=0
∵ it passes through (2,-3)
2²+(-3)²-2(2)-10(-3)+c=0
4+9-4+30+c=0
c=-39
eq. of circle is is x²+y²-2x-10y-39=0
Answer:
I just want points hahahaha
